/Engine/Plugins/Runtime/Metasound/Source/MetasoundFrontend/Public/MetasoundFrontendController.h
Creates and returns a variable deferred accessor node.
[FNodeHandle](API\Plugins\MetasoundFrontend\FNodeHandle) AddVariableDeferredAccessorNode ( const [FGuid](API\Runtime\Core\Misc\FGuid) & InVariableID )